BMW 8 SERIES (2020)
Running costs, common problems, and reliability data based on 1,213 real MOT tests in 2024.
MOT Pass Rate
93%
Total Tests (2024)
1,213
Avg Mileage
32,628 mi
Est. Annual Cost
£1,690
Is the 2020 BMW 8 SERIES reliable?
Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 4 years old, 93% of BMW 8 SERIESs from 2020 passed their MOT first time in 2024. That's based on 1,213 tests across the UK. The average mileage at this age is 32,628 miles.
How does the 2020 BMW 8 SERIES compare?
Mileage Analysis
The average 2020 BMW 8 SERIES has 32,628 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.
Best year to buy a BMW 8 SERIES?
The most reliable year is the 2018 model with a 94% MOT pass rate, while the 2021 model has the lowest at 92%. The 2020 sits between the two at 93%.
How much does a 2020 BMW 8 SERIES cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW 8 SERIES by Year
Checking a specific BMW 8 SERIES?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 BMW 8 SERIES
The 2020 BMW 8 SERIES is a premium performance with a 2993cc diesel engine. 1,213 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 32,628 miles at 4 years old, BMW 8 SERIES owners drive about as much as the UK average.
2020 BMW 8 SERIES Fuel Costs
The 2993cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 BMW 8 SERIES?
Total estimated annual running cost is £1,690 (£141/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
BMW 8 SERIES Reliability Trend
The BMW 8 SERIES has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2020 BMW 8 SERIES
At 4 years old, the BMW 8 SERIES offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2018 model has the highest pass rate at 94%.
Alternatives to the 2020 BMW 8 SERIES
The BMW 8 SERIES is actually the most reliable option among similar diesel premium performances from this era. Here are comparable diesel cars with similar engines:
- MERCEDES E (2019) 90% pass rate (-3%) from 41,000 tests
- MERCEDES GLC (2018) 91% pass rate (-2%) from 40,494 tests
- FORD RANGER (2019) 87% pass rate (-6%) from 32,194 tests
- LAND ROVER RANGE ROVER VELAR (2018) 91% pass rate (-2%) from 29,640 tests